1 /*
2 * win_if_list - Display network interfaces with description (for Windows)
3 * Copyright (c) 2004-2006, Jouni Malinen <j@w1.fi>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 *
14 * This small tool is for the Windows build to provide an easy way of fetching
15 * a list of available network interfaces.
16 */
17
18 #include "includes.h"
19 #include <stdio.h>
20 #ifdef CONFIG_USE_NDISUIO
21 #include <winsock2.h>
22 #include <ntddndis.h>
23 #else /* CONFIG_USE_NDISUIO */
24 #include "pcap.h"
25 #include <winsock.h>
26 #endif /* CONFIG_USE_NDISUIO */
27
28 #ifdef CONFIG_USE_NDISUIO
29
30 /* from nuiouser.h */
31 #define FSCTL_NDISUIO_BASE FILE_DEVICE_NETWORK
32
33 #define _NDISUIO_CTL_CODE(_Function, _Method, _Access) \
34 CTL_CODE(FSCTL_NDISUIO_BASE, _Function, _Method, _Access)
35
36 #define IOCTL_NDISUIO_QUERY_BINDING \
37 _NDISUIO_CTL_CODE(0x203, METHOD_BUFFERED, \
38 FILE_READ_ACCESS | FILE_WRITE_ACCESS)
39
40 #define IOCTL_NDISUIO_BIND_WAIT \
41 _NDISUIO_CTL_CODE(0x204, METHOD_BUFFERED, \
42 FILE_READ_ACCESS | FILE_WRITE_ACCESS)
43
44 typedef struct _NDISUIO_QUERY_BINDING
45 {
46 ULONG BindingIndex;
47 ULONG DeviceNameOffset;
48 ULONG DeviceNameLength;
49 ULONG DeviceDescrOffset;
50 ULONG DeviceDescrLength;
51 } NDISUIO_QUERY_BINDING, *PNDISUIO_QUERY_BINDING;
52
53
ndisuio_open(void)54 static HANDLE ndisuio_open(void)
55 {
56 DWORD written;
57 HANDLE h;
58
59 h = CreateFile(TEXT("\\\\.\\\\Ndisuio"),
60 GENERIC_READ | GENERIC_WRITE, 0, NULL,
61 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
62 INVALID_HANDLE_VALUE);
63 if (h == INVALID_HANDLE_VALUE)
64 return h;
65
66 #ifndef _WIN32_WCE
67 if (!DeviceIoControl(h, IOCTL_NDISUIO_BIND_WAIT, NULL, 0, NULL, 0,
68 &written, NULL)) {
69 printf("IOCTL_NDISUIO_BIND_WAIT failed: %d",
70 (int) GetLastError());
71 CloseHandle(h);
72 return INVALID_HANDLE_VALUE;
73 }
74 #endif /* _WIN32_WCE */
75
76 return h;
77 }
78
79
ndisuio_query_bindings(HANDLE ndisuio)80 static void ndisuio_query_bindings(HANDLE ndisuio)
81 {
82 NDISUIO_QUERY_BINDING *b;
83 size_t blen = sizeof(*b) + 1024;
84 int i, error;
85 DWORD written;
86 char name[256], desc[256];
87 WCHAR *pos;
88 size_t j, len;
89
90 b = malloc(blen);
91 if (b == NULL)
92 return;
93
94 for (i = 0; ; i++) {
95 memset(b, 0, blen);
96 b->BindingIndex = i;
97 if (!DeviceIoControl(ndisuio, IOCTL_NDISUIO_QUERY_BINDING,
98 b, sizeof(NDISUIO_QUERY_BINDING), b,
99 (DWORD) blen, &written, NULL)) {
100 error = (int) GetLastError();
101 if (error == ERROR_NO_MORE_ITEMS)
102 break;
103 printf("IOCTL_NDISUIO_QUERY_BINDING failed: %d",
104 error);
105 break;
106 }
107
108 pos = (WCHAR *) ((char *) b + b->DeviceNameOffset);
109 len = b->DeviceNameLength;
110 if (len >= sizeof(name))
111 len = sizeof(name) - 1;
112 for (j = 0; j < len; j++)
113 name[j] = (char) pos[j];
114 name[len] = '\0';
115
116 pos = (WCHAR *) ((char *) b + b->DeviceDescrOffset);
117 len = b->DeviceDescrLength;
118 if (len >= sizeof(desc))
119 len = sizeof(desc) - 1;
120 for (j = 0; j < len; j++)
121 desc[j] = (char) pos[j];
122 desc[len] = '\0';
123
124 printf("ifname: %s\ndescription: %s\n\n", name, desc);
125 }
126
127 free(b);
128 }
129
130
ndisuio_enum_bindings(void)131 static void ndisuio_enum_bindings(void)
132 {
133 HANDLE ndisuio = ndisuio_open();
134 if (ndisuio == INVALID_HANDLE_VALUE)
135 return;
136
137 ndisuio_query_bindings(ndisuio);
138 CloseHandle(ndisuio);
139 }
140
141 #else /* CONFIG_USE_NDISUIO */
142
show_dev(pcap_if_t * dev)143 static void show_dev(pcap_if_t *dev)
144 {
145 printf("ifname: %s\ndescription: %s\n\n",
146 dev->name, dev->description);
147 }
148
149
pcap_enum_devs(void)150 static void pcap_enum_devs(void)
151 {
152 pcap_if_t *devs, *dev;
153 char err[PCAP_ERRBUF_SIZE + 1];
154
155 if (pcap_findalldevs(&devs, err) < 0) {
156 fprintf(stderr, "Error - pcap_findalldevs: %s\n", err);
157 return;
158 }
159
160 for (dev = devs; dev; dev = dev->next) {
161 show_dev(dev);
162 }
163
164 pcap_freealldevs(devs);
165 }
166
167 #endif /* CONFIG_USE_NDISUIO */
168
169
main(int argc,char * argv[])170 int main(int argc, char *argv[])
171 {
172 #ifdef CONFIG_USE_NDISUIO
173 ndisuio_enum_bindings();
174 #else /* CONFIG_USE_NDISUIO */
175 pcap_enum_devs();
176 #endif /* CONFIG_USE_NDISUIO */
177
178 return 0;
179 }
180